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| 1 // Copyright 2013 the V8 project authors. All rights reserved. |
| 2 // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. |
| 3 // |
| 4 // Redistribution and use in source and binary forms, with or without |
| 5 // modification, are permitted provided that the following conditions |
| 6 // are met: |
| 7 // 1. Redistributions of source code must retain the above copyright |
| 8 // notice, this list of conditions and the following disclaimer. |
| 9 // 2. Redistributions in binary form must reproduce the above copyright |
| 10 // notice, this list of conditions and the following disclaimer in the |
| 11 // documentation and/or other materials provided with the distribution. |
| 12 // |
| 13 // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN
Y |
| 14 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 15 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 16 // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN
Y |
| 17 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 18 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 19 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O
N |
| 20 // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 21 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 22 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 23 |
| 24 description("This page tests handling of parenthetical assertions."); |
| 25 |
| 26 var regex1 = /(x)(?=\1)x/; |
| 27 shouldBe("regex1.exec('xx')", "['xx','x']"); |
| 28 |
| 29 var regex2 = /(.*?)a(?!(a+)b\2c)\2(.*)/; |
| 30 shouldBe("regex2.exec('baaabaac')", "['baaabaac','ba',undefined,'abaac']"); |
| 31 |
| 32 var regex3 = /(?=(a+?))(\1ab)/; |
| 33 shouldBe("regex3.exec('aaab')", "['aab','a','aab']"); |
| 34 |
| 35 var regex4 = /(?=(a+?))(\1ab)/; |
| 36 shouldBe("regex4.exec('aaab')", "['aab','a','aab']"); |
| 37 |
| 38 var regex5 = /^P([1-6])(?=\1)([1-6])$/; |
| 39 shouldBe("regex5.exec('P11')", "['P11','1','1']"); |
| 40 |
| 41 var regex6 = /(([a-c])b*?\2)*/; |
| 42 shouldBe("regex6.exec('ababbbcbc')", "['ababb','bb','b']"); |
| 43 |
| 44 var regex7 = /(x)(?=x)x/; |
| 45 shouldBe("regex7.exec('xx')", "['xx','x']"); |
| 46 |
| 47 var regex8 = /(x)(\1)/; |
| 48 shouldBe("regex8.exec('xx')", "['xx','x','x']"); |
| 49 |
| 50 var regex9 = /(x)(?=\1)x/; |
| 51 shouldBeNull("regex9.exec('xy')"); |
| 52 |
| 53 var regex10 = /(x)(?=x)x/; |
| 54 shouldBeNull("regex10.exec('xy')"); |
| 55 |
| 56 var regex11 = /(x)(\1)/; |
| 57 shouldBeNull("regex11.exec('xy')"); |
| 58 |
| 59 var regex12 = /(x)(?=\1)x/; |
| 60 shouldBeNull("regex12.exec('x')"); |
| 61 shouldBe("regex12.exec('xx')", "['xx','x']"); |
| 62 shouldBe("regex12.exec('xxy')", "['xx','x']"); |
| 63 |
| 64 var regex13 = /(x)zzz(?=\1)x/; |
| 65 shouldBe("regex13.exec('xzzzx')", "['xzzzx','x']"); |
| 66 shouldBe("regex13.exec('xzzzxy')", "['xzzzx','x']"); |
| 67 |
| 68 var regex14 = /(a)\1(?=(b*c))bc/; |
| 69 shouldBe("regex14.exec('aabc')", "['aabc','a','bc']"); |
| 70 shouldBe("regex14.exec('aabcx')", "['aabc','a','bc']"); |
| 71 |
| 72 var regex15 = /(a)a(?=(b*c))bc/; |
| 73 shouldBe("regex15.exec('aabc')", "['aabc','a','bc']"); |
| 74 shouldBe("regex15.exec('aabcx')", "['aabc','a','bc']"); |
| 75 |
| 76 var regex16 = /a(?=(b*c))bc/; |
| 77 shouldBeNull("regex16.exec('ab')"); |
| 78 shouldBe("regex16.exec('abc')", "['abc','bc']"); |
| 79 |
| 80 var regex17 = /(?=((?:ab)*))a/; |
| 81 shouldBe("regex17.exec('ab')", "['a','ab']"); |
| 82 shouldBe("regex17.exec('abc')", "['a','ab']"); |
| 83 |
| 84 var regex18 = /(?=((?:xx)*))x/; |
| 85 shouldBe("regex18.exec('x')", "['x','']"); |
| 86 shouldBe("regex18.exec('xx')", "['x','xx']"); |
| 87 shouldBe("regex18.exec('xxx')", "['x','xx']"); |
| 88 |
| 89 var regex19 = /(?=((xx)*))x/; |
| 90 shouldBe("regex19.exec('x')", "['x','',undefined]"); |
| 91 shouldBe("regex19.exec('xx')", "['x','xx','xx']"); |
| 92 shouldBe("regex19.exec('xxx')", "['x','xx','xx']"); |
| 93 |
| 94 var regex20 = /(?=(xx))+x/; |
| 95 shouldBeNull("regex20.exec('x')"); |
| 96 shouldBe("regex20.exec('xx')", "['x','xx']"); |
| 97 shouldBe("regex20.exec('xxx')", "['x','xx']"); |
| 98 |
| 99 var regex21 = /(?=a+b)aab/; |
| 100 shouldBe("regex21.exec('aab')", "['aab']"); |
| 101 |
| 102 var regex22 = /(?!(u|m{0,}g+)u{1,}|2{2,}!1%n|(?!K|(?=y)|(?=ip))+?)(?=(?=(((?:7))
*?)*?))p/m; |
| 103 shouldBe("regex22.exec('55up')", "null"); |
| 104 |
| 105 var regex23 = /(?=(a)b|c?)()*d/; |
| 106 shouldBe("regex23.exec('ax')", "null"); |
| 107 |
| 108 var regex24 = /(?=a|b?)c/; |
| 109 shouldBe("regex24.exec('x')", "null"); |
| 110 |
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